Kill 10 guardians with headshots from the front while their shields are raised.

Spill 10000 pints of blood

Learn more about the Prothean Empire.

Upgrade any weapon to level 10.

Promote a multiplayer character to the Galaxy at War or import an ME3 character.

MVP in a ranked match

Complete Mass Effect 3 twice, or once with a Mass Effect 2 import.

Make the final assault.

Dispatch 10 probes to retrieve people or resources in Reaper territory.

Complete three multiplayer matches or five N7 missions.

Reach level 15 in multiplayer or level 50 in single-player.

Extract ancient technology.

Disable a group of fighter squadrons.